Title :
A new remote keyless entry system resistant to power analysis attacks
Author :
Moradi, Amir ; Kasper, Timo
Author_Institution :
Horst Gortz Inst. for IT Security, Ruhr Univ. Bochum, Bochum, Germany
Abstract :
In CRYPTO 2008, it has been shown that power-analysis attacks can completely break real-word remote keyless entry (RKE) systems based on the KeeLoq code-hopping scheme. A successful key-recovery involves a couple of security and privacy risks for the consumers as well as for the manufacturers. In this paper, we introduce a new RKE system that is inherently resistant against side-channel attacks, independent of the implementation platform. For our approach, a pseudo random number generator (PRNG) as introduced in ASIACCS 2008 is extended to prevent template attacks, and embedded into a secure remote-control application. We verify the effectiveness of the proposed scheme by implementing it on a microcontroller and evaluate its physical security, thereby demonstrating that a practical key-recovery by means of power-analysis is not feasible.
Keywords :
consumer protection; cryptography; microcontrollers; random number generation; KeeLoq code hopping scheme; consumers privacy risks; microcontroller; power analysis attacks; practical key recovery; pseudo random number generator; remote keyless entry system; side channel attacks; Control systems; Counting circuits; Cryptography; Energy consumption; Manufacturing; Microcontrollers; Power system security; Privacy; Random number generation; Signal to noise ratio;
Conference_Titel :
Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on
Conference_Location :
Macau
Print_ISBN :
978-1-4244-4656-8
Electronic_ISBN :
978-1-4244-4657-5
DOI :
10.1109/ICICS.2009.5397727
